leyiso-n



(No Model.) '4 Sheets-Sheet 1.

W. G. LEVISON. ELECTRIC LIGHT LANTERN.

No. 289,425. Patented Dec. 4, 1883.

Fig.1. R

lwuamuo 7614M (No Model.)

. V W. G. LEVISON.

ELECTRIC LIGHT LANTERN.

N0.Z89,425. V Patented De0.4,1883.-

' V4 Sheets-Sheet 2.

oooooooo ELECTRIC LLLLLLLLLLLL I No. 289.425. Patented Dec. 4, 1883.

(No Model.) 4 Sheets-Sheet 4.

W. G. LEVISON.

ELECTRIC LIGHT LANTERN. No. 289,425. Patented Dec. 4, 1883.

n, vnsns. Pnmmmnw'. Washinglml. D. c.

WALLACE GooLD Lnvis oiv, or BROOKLYN, NEW .YORK.

ELECTRIC-LIGHTLANTERN.

SPECIFICATION forming part of Letters Patent No. 289,425, dated December Application filed May 28. 1881. Renewed October 24, 1883. (No Model.)

To coZZ iuhom it may concern.-

Be it known that I, WALLACE GooLn LEVI- sort, of the city of Brooklyn, county of Kings,

and State of New York, have invented a new and useful improvement in electric-light and calcium-light lanterns for locomotive or ship head lights or light-houses,or for illuminating limited areas ofspace, or for projecting views before audiences; and it consists of a method of so combining the electric lamp with the lantern that the-electric light may be easily adjusted therein as occasion requires, either vertically or horizontally in either direction, at various distances from the condenser or front lens or the focus of a reflector, and also be easily removed'altogether from the lantern, and a calcium light be substituted for it in a few moments; and I hereby declare the following to be a full, clear, and explicit description of the invention, such as will enable others skilled in the art to which it belongs to make anduse it, reference being had to theaccompanying drawings, which form part of this specification, and in which is shown the mode of attaching to a lantern a modified form of the lamp described in Letters Patent N 0. 239,811,, granted to me on April 5, 1881, it being, however, understood that any other suitable kind of a lamp may be substituted there for.

In the drawings, Figures 1 and 2 show the door of a lantern, the mode of attaching an electriclamp thereto, and the mode of conveying the electric current from the door to is opened.

the lamp attached thereto. Fig. 3'shows the mode of conveying the electric current through the hinges of the door and to the parts of the lamp attached thereto. Fig. 4 is a perspective View, showing the inside of the lantern, with the door half open. It also shows how the electric lamp is attached to said door, the electric-circuit connections, and how the lamp is withdrawn from the lantern when the door Fig. 5 shows the lantern in per-. spective without the electric lamp, and with the additions to the door and false bottom R inserted. Fig. 6 shows a front elevation of my lantern when used as a. locomotive headlight. Fig. 7 shows a longitudinal sectional tension-fra1ne and set-screws, so that the lamp ing-rod of suitable insulating material-such as wood-fixed to the movable piece 0, and carrying at E the support or guide for the upper carbon, and at F the support for the lower carbon of the electric lamp.

The lightingcurrent is led to the large hinges H H, on which the doorA swings, and therefrom to two strips of metal, (preferably copper,) HH, which form the poles of the main battery.

Springs I I are fastened at one end to the standard I),'while the free ends rest upon the conducting-strips H H, thus retaining the cir cuit unbroken when the slide 0 is moved back ward or forward on the door, for the purpose of adjusting the distance of the lamp from the n condenser. These springs I I are connected with flat strips of metal, (not lettered but shown by full and dotted lines opposite the letters I) D in Fig. 2,) sunken into the standard D, which lead to the carbon-holders E and F, so that the said carbon-holders may be raised or lowcred on the standard D and clamped at any desired point by the thumb-screws J without breaking the circuit; In like manner abranch current on an extra separate current may, if desired, be led to the small intermediate hinges, k k, and, by strips of metal is, let into the door flush with its surface, be led to the springs L L, Fig. 2, which always rest upon the sunken strips last aforesaid, through the openings in j j the slide ()wherever the slide may be adjusted. From these springs L L wires may be sunken on the sides of the standard D, and thenceled to any point where a shunt-current may be desired. The slide 0, together with the entire lamp attached thereto, may be altogether with drawn and disconnected from the doorA' by moving the slide 0 to the right and replaced at will. WVhile the light is burning thefdoorA may be opened, and as the current producing the light is conveyed'through the "hinges the light will not be extinguished thereby, but con tinue to burn on the open door, and may be inspected or adjusted conveniently, as it is then wholly outside of the lantern. The door A may have one-half of the top M of the lantern attached to it, as shown in Fig. 4, leaving a slot to admit the passage of the carbon or carbon-holder when the door is closed. Should an escape of light through the slot be objectionable, it may be covered, after the door is closed, with loose pieces of sheet metal, or a strip may be permanently affixed to the frame E, which sustains the upper carbon, and move with it back and forth, thus always intercepting the light escaping through the space referred to. The door A may also have one half of the bottom P hinged to it in a similar way, the other half, Q, being hinged to the opposite side of the lantern, as shown in Figs. L and 5.' The slot left in the bottom is of no consequence, for light escaping from it falls only on the table; but instead of the columns three sides of the box may be inclosed, and even this light thus partly shut in. The lamp is connected to the standard D by the frames E and F. These frames are provided with slots, screw-holes, and thumb-screws 1' r s s H, arranged in the usual manner, so that by loosing the thumb-screws the lamp may be set at any distance from the standard D, and the position of the light adjusted in that direction with reference to the condenser of the lantern.

In lanterns or head-lights for locomotives or ships it is evident (see Figs. 6 and 7) that if a reflector be inclosed in the usual square box and the side of this box be formed, as

\ hereinbefore described, as a door, A, and the side of the reflector N be slotted to admit the passage of the carbon, as at O, on opening the door the lamp will swing outside of the refiector without being extinguished, and that on closing the door the light will return to the exact point it previously occupied; or, if desired, it may be adjusted so as to return to a different point and always be easily brought into the true focus of the reflector. It is also apparent that by making the box of the lantern large enough, the whole lamp may be illclosed therein and slide on the inside of the door, and yet all its working parts be outside of the reflector.

Returning, now, again to the lantern first described for general use, and especially in so far as this improvement applies to lanterns for projecting views before audiences, it is evident that by removing the electric lamp, as shown in Fig. 5, folding up the hinged bottom P and Q, placing a false bottom, R, in the lantern upon cleats or supports fixed therein at a suitable height, and fastening by a bolt, V, Fig. 5, an extra door, S, swung, as shown in Figs. 4 and 5, 011 loose butts to the lower part of the door A, the whole may be in a moment changed into a lantern in which a calcium-light may be placed, and it will become a calcium-light lantern. The holes T U in the back of Fig. 5 are for the rubber tubes to pass through.

It is evident that the cleats for the false bottoms may, if preferable, be at the same height as the folding bottom.

Having now described my invention, what I claim as new, and desire to patent, is-

1. In a lantern, the combination, with a door or other part of the lantern, of a sliding.

plate moving between guides and carrying a support for the parts of an electric lamp, whereby it may be moved away from or toward the condenser or removed altogether, substantially as described.

2. The combination of the door of a lantern with a portion of the top of said lantern, the whole being so arranged that when the said door is opened that portion of the-top attached thereto will be removed at the same time, substantially as and for the purpose described.

lamp, and springs attached at one end to said f standard and bearing at the other upon metal strips attached to said door or side, so that the electric circuit may be maintained un broken at any position of said movable piece, substantially as shown and described.

5. The combination of an electric lamp with the door of a lantern, said lamp being attached in such a manner that it may be readil y removed and replaced at will, substantially as specified.

6. An electric lamp attached to'the door of a lantern in such av manner that when the door of said lantern is opened the said lamp will swing with the door and be removed without the said lantern, combined with a reflector so slotted upon one side that the carbons may be withdrawn through said slot from and replaced in the focus of said reflector by the opening and closing said door, substantially as shown and described.

7. In a lantern adapted for the use of an electric or calcium lamp interchangeably, the combination of a hinged bottom which may be folded upward and secured against the sides or side and door of said lantern, a removable downward extension of said door, and a false bottom, all so arranged that the height of said lantern may be increased when the calciumlight is employed, and diminished when the electric lamp is to be used, substantially as shown and described, or, if preferable, remain the same.

WALLACE GOOLD LEVISON.

W'itnesses:

JAS. L. MONTGOMERY, CHANOELLOR G. LEVISON. 

